The Attenuator,fixed, cataloged under National Stock Number 5985-00-166-0779, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Telephonics Corp/prd Instruments. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5985-00-166-0779 |
| Primary Part Number | 1654-6S1 |
| Item Name | Attenuator,fixed |
| FSC / FSG | 5985 / 59 — No Item Name Available |
| Manufacturer | Telephonics Corp/prd Instruments |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| Overall Diameter | 0.500 INCHES NOMINAL IN |
| Coaxial Connector Series Designation | SM |
| Voltage Standing Wave Ratio Frequency Range | +0.0 TO 3.0 GIGAHERTZ AND +3.0 TO 6.0 GIGAHERTZ |
| Temperature Sensitivity Attenuation in Decibels | 0.0010 |
| Terminal Type and Quantity | 2 CONNECTOR |
| Frequency Range | 0.000 HERTZ MINIMUM AND 6.000 GIGAHERTZ MAXIMUM |
| Rf Signal Attenuation in Decibels | 6.0 |
| Output Impedance Rating in Ohms | 50.0 |
| Operating Temp Range | +0.0 TO 85.0 CELSIUS DEGC |
| Input Impedance Rating in Ohms | 50.0 |
| Mounting Method | CONNECTOR |
| Body Style | ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE |
| Voltage Standing Wave Ratio | 1.20 AND 1.25 |
| Connection Type Per Function | FEMALE INPUT AND FEMALE OUTPUT AND MALE INPUT AND MALE OUTPUT |
| Power Rating | 500.0 WATTS PEAK |
| Application Design | TRANSMISSION LINE |
| Surface Treatment | ENAMEL BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 247ASC0179-002 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 1654-6S1 | Peraton Inc (USA) |
| 4773-6 | Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA) |
| 1654-6S1 PRIMARY | Telephonics Corp/prd Instruments (USA) |
NSN 5985-00-166-0779 is a Attenuator,fixed, manufactured by Telephonics Corp/prd Instruments, classified under FSC 5985 (No Item Name Available). Status: active.
NSN 5985-00-166-0779 has 4 cross-referenced part numbers: 247ASC0179-002 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 1654-6S1 (Peraton Inc), 4773-6 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 1654-6S1 (Telephonics Corp/prd Instruments).
There are 2 known substitutes for 5985-00-166-0779: 2915-00-073-7301, 5310-00-407-9566. Verify interchangeability with system specifications before substitution.
Key specifications for 1654-6S1: Material: COPPER ALLOY BODY; Overall Diameter: 0.500 INCHES NOMINAL IN; Coaxial Connector Series Designation: SM; Voltage Standing Wave Ratio Frequency Range: +0.0 TO 3.0 GIGAHERTZ AND +3.0 TO 6.0 GIGAHERTZ. 19 total characteristics are documented in the Federal Logistics Information System.